<form nz-form [formGroup]="validateForm" class="login-form" (ngSubmit)="submitForm()">
    <nz-form-item>
      <nz-form-control>
        <nz-input-group nzPrefixIcon="anticon anticon-user">
          <input type="text" nz-input formControlName="userName" placeholder="Username">
        </nz-input-group>
        <nz-form-explain *ngIf="validateForm.get('userName').dirty && validateForm.get('userName').errors">Please input your username!</nz-form-explain>
      </nz-form-control>
    </nz-form-item>
    <nz-form-item>
      <nz-form-control>
        <nz-input-group nzPrefixIcon="anticon anticon-lock">
          <input type="password" nz-input formControlName="password" placeholder="Password">
        </nz-input-group>
        <nz-form-explain *ngIf="validateForm.get('password').dirty && validateForm.get('password').errors">Please input your Password!</nz-form-explain>
      </nz-form-control>
    </nz-form-item>
    <nz-form-item>
      <nz-form-control>
        <label nz-checkbox formControlName="remember">
          <span>Remember me</span>
        </label>
        <a class="login-form-forgot" class="login-form-forgot">Forgot password</a>
        <button nz-button class="login-form-button" [nzType]="'primary'" (click)="login();">Log in</button>
        Or
        <a href="">register now!</a>
      </nz-form-control>
    </nz-form-item>
  </form>